A Linearization Technique for Bipolar Amplifiers based on Derivative Superposition
M. D'Avino (External organisation)
J.M.M. van der Meulen (TU Delft - Electronics)
E.S. Malotaux (TU Delft - Electronics)
Marco J. Pelk (TU Delft - Electronics)
L.C.N. de Vreede (TU Delft - Electronics)
M.W.A Groenewegen (NXP Semiconductors)
P. Mattheijssen (NXP Semiconductors)
M.P. van der Heijden (NXP Semiconductors)
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Abstract
A linearization technique for bipolar amplifiers based on Derivative
Superposition is presented. The proposed technique provides excellent
linearity, while having low sensitivity on the bias conditions. A
demonstrator circuit, along with a reference circuit using out-of-band
linearization for linearity comparison, have been designed and
implemented in a 0:25μm SiGe:C BiCMOS technology to show the
effectiveness of the proposed approach. Measured results show a
significant IM3 improvement up to compression compared to the reference
circuit.
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